1.1/8", 36°×45° ACB
For tapered 50mm/62mm OD Head Tube
1.1/8" steerer
Alloy top cover
Upper: Forged alloy cup with ACB (blue seal)
Lower: 1.5" CNC machined alloy cup with ACB (blue seal)
Stack height: 16.9 + 2.9 = 19.8mm
Weight: 129.6g
Spares:
Upper Bearing: TH873E (160-0014000000)
Lower Bearing: TH073 (160-6761)
Crown Race: 1.1/8” (H6089, 160-5540)